From ea9738950dd785959333f826a627d2a52a2e2b64 Mon Sep 17 00:00:00 2001
From: postmannen <postmannen@gmail.com>
Date: Tue, 6 Jun 2023 12:23:26 +0200
Subject: [PATCH] initial implementation where toFile also writes to sockets

---
 requests_copy.go          | 18 ++++++++++++++++--
 requests_file_handling.go | 33 +++++++++++++++++++--------------
 2 files changed, 35 insertions(+), 16 deletions(-)

diff --git a/requests_copy.go b/requests_copy.go
index 3334e74..8b6e1aa 100644
--- a/requests_copy.go
+++ b/requests_copy.go
@@ -442,6 +442,18 @@ type copySubData struct {
 func copySrcSubProcFunc(proc process, cia copyInitialData, cancel context.CancelFunc, initialMessage Message) func(context.Context, chan Message) error {
 	pf := func(ctx context.Context, procFuncCh chan Message) error {
 
+		// Check if the realpath of the directory and filename specified in the
+		// message are of type unix socket, and if it is we do not add the extra
+		// suffix to the filename.
+		file := filepath.Join(initialMessage.Directory, initialMessage.FileName)
+
+		// Check the file is a unix socket, and if it is we write the
+		// data to the socket instead of writing it to a normal file.
+		fi, err := os.Stat(file)
+		if err == nil {
+			fmt.Printf(" ** DEBUG: STAT ERROR: %v\n", err)
+		}
+
 		// We want to be able to send the reply message when the copying is done,
 		// and also for any eventual errors within the subProcFunc. We want to
 		// write these to the same place as the the reply message for the initial
@@ -449,8 +461,10 @@ func copySrcSubProcFunc(proc process, cia copyInitialData, cancel context.Cancel
 		// individual files.
 		msgForSubReplies := initialMessage
 		msgForSubErrors := initialMessage
-		msgForSubReplies.FileName = msgForSubReplies.FileName + ".copyreply"
-		msgForSubErrors.FileName = msgForSubErrors.FileName + ".copyerror"
+		if fi.Mode().Type() != fs.ModeSocket {
+			msgForSubReplies.FileName = msgForSubReplies.FileName + ".copyreply"
+			msgForSubErrors.FileName = msgForSubErrors.FileName + ".copyerror"
+		}
 
 		var chunkNumber = 0
 		var lastReadChunk []byte
diff --git a/requests_file_handling.go b/requests_file_handling.go
index 73b873e..82bc71e 100644
--- a/requests_file_handling.go
+++ b/requests_file_handling.go
@@ -17,25 +17,30 @@ func reqWriteFileOrSocket(isAppend bool, proc process, message Message) error {
 	fileName, folderTree := selectFileNaming(message, proc)
 	file := filepath.Join(folderTree, fileName)
 
+	fmt.Printf("******************* DEBUG: CHECK IF SOCKET OR FILE: %v\n", file)
+
+	// log.Fatalf("EXITING\n")
+
 	// Check the file is a unix socket, and if it is we write the
 	// data to the socket instead of writing it to a normal file.
 	fi, err := os.Stat(file)
-	if err == nil {
-		if fi.Mode().Type() == fs.ModeSocket {
-			// TODO: Write to socket
-			socket, err := net.Dial("unix", file)
-			if err != nil {
-				er := fmt.Errorf("error: methodREQToFile/Append could to open socket file for writing: subject:%v, folderTree: %v, %v", proc.subject, folderTree, err)
-				return er
-			}
-			defer socket.Close()
+	if err == nil && !os.IsNotExist(err) {
+		er := fmt.Errorf("info: reqWriteFileOrSocket: failed to stat file, but will continue: %v", folderTree)
+		proc.errorKernel.logDebug(er, proc.configuration)
+	}
 
-			_, err = socket.Write([]byte(message.Data))
-			if err != nil {
-				er := fmt.Errorf("error: methodREQToFile/Append could not write to socket: subject:%v, folderTree: %v, %v", proc.subject, folderTree, err)
-				return er
-			}
+	if fi != nil && fi.Mode().Type() == fs.ModeSocket {
+		socket, err := net.Dial("unix", file)
+		if err != nil {
+			er := fmt.Errorf("error: methodREQToFile/Append could to open socket file for writing: subject:%v, folderTree: %v, %v", proc.subject, folderTree, err)
+			return er
+		}
+		defer socket.Close()
 
+		_, err = socket.Write([]byte(message.Data))
+		if err != nil {
+			er := fmt.Errorf("error: methodREQToFile/Append could not write to socket: subject:%v, folderTree: %v, %v", proc.subject, folderTree, err)
+			return er
 		}
 
 	}